Printing-press



(No Model.) A 2 she'ets-sne'es"1.

' H. BREUER..

PRINTING ERESS.

Patented Deo, 19, 1893,

' NVENTOH BMW@ A TTOHNEYS.

. fue ummm. ummm cum-Am;

Wm NB CN. D. 0.

v(itin Model.) 2 Sheets-Sheet 2. HL BREUBR. PRINTING PRESS.

No. 511,113. Patented-Dec. 19,1893.

ATTORNEYS.

NATIONAL L To @ZZ whom t 11i/tty concern.-

UNITED STATES PATENT OFFICE.

IAIYNEK BREUER, F NEV PRAGUE, MINNESOTA.

PRlNTlNGQPRESS.

SPECIFICATION forming part of Letters Patent No. 51 1,113, datedDecember 19, 1893. Application filed February 28, 1893. Serial No.464,005. (No model.)

Beit known that I, HYNEK BREUER, of New Prague, in the county of Scottand State of v Minnesota, have invented a new and useful Improvement inPrinting-Presses, of which the following isafull, clear, and exactdescription.

My invention relates to an improvement in printing presses, especiallyto hand presses of the cylinder type, and it has for its object toprovide a press with a rocking tympan so constructed that it willoperate automatically across the bed of the press as the cylinder isrolled over the latter.

A. further object of the invention is to construct the tympan in asimple, durable and economic manner and also whereby as the `impressioncylinder is manipulated the matef rial upon which the printing is to beproduced will contact with the type form only at that pointat which theimpression is to be taken, the tympan acting automatically to carry thematerial upon which the impression is made away from the face of thetype immediately after receiving an impression.

It is a further object of the invention to construct the tympan in suchmanner that one side of it will be automatically released the momentthat the impression cylinder has passed to the end of the bed. y

Another object of theinvention is to so construct the tympan that itwill be prevented from moving side-wise, being compelled to have endmotion only,'and whereby the tympan when actingin conjunction with theimg pression cylinder will produce a clear, sharp and fine print fornewspapers, posters, ne book work and illustrations, eectuallypreventing smudging of the printed material, and whereby at the sametime the work will be rapidly performed, the cylinder only beingmanipulated.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinat ter fully set forth and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures and letters of referenceindicate corresponding parts in all the views.

Figure l is a section taken vertically and centrally through the bed,tympan and impression cylinder of a press,A the said section being takenessentially on the line l-l of Fig. 2, the impression cylinder beingshown as about mid-way of the press bed. Fig. 2 is a plan View of theimproved press. Fig. 3 is a vertical section taken through the bed atone end and through the cylinder, illustratingthe cylinder at the end ofthe press and the tympan in position to commence printing. Fig. 4 is anend view of the press. Fig. 5 is an enlarged partial transverse sectionthrough the bed, the cylinder and a portion of the tympan ot' the press,illustrating their connection. Fig. 6 is a detail view, illustrating themanner in which the grippers of the tympan are spring-controlled; andFig. 7 is a view similar to Fig. 8, illustrating however, the oppositeend of the press and showing the impression cylinder as near the end,and the position ot' the tympan at that time; the said Fig. 7 alsoillustrates a slight modification in the construction of the tympan.

In carrying out theinvention the bed A of the press is supportedpreferably by angular side or bracket rails B, which rails in their turnare supported by appropriate legs or standards. The bracket rails B,extend beyond both ends of the bed A, and upon each member of eachbracket rail a run-way l0, is located, the upper edge of which extendsabove the upper edge of the horizontal members of the bracket rails, asshown best in Figs. t and 5, and vthe bed is usually made to abut at itsside edges against the run-ways 10. Rails 1l, are located upon the bedat its sides, the said rails engaging with the inner surfaces of therun-ways, but the tops of the rails are some distance below the tops ofthe run-ways, as is likewise best shown in Fig.

5; and the rails 1l and run-ways 10, maybe made integral vor connectedin any suitable or Vapproved manner. The rails are adapted as rtracks.for the tympan C to be hereinafter described, and the run-ways areadapted as tracks for the impression cylinder l), which may be rotatedor rolled over the bedl in 'any suitable or approved manner.

I have illustrated as placed upon the bed chases l2, and vhave showntype forms 13 lockedV therein, and itwi'llfhe uobserved by I ne 1 'Themain feature etthis `inverttion. relate 1to1 the construction etk thetympanlG, andthe 'ibedy portion ef Knit he Vsaid tympan *comprises gVtwo side barstteVV andY l5, 'fhaving'anl archedfi and thesaidfhedy isprovided withcnrved K connected Vhy brace rods 18,in ardent-hat tir-e1r.K vsaid carved portiensshall 'lo'eheldy impropershape;andfnear'iliebottemportion; cthe Kserved sectiensotthe tympan ateach end,Y a -K shaftl 19, is journaledin"suitahlebearings 20,

attached- `tothe said side. pieeesas shown; in

K Fig; ag/and: the bearings-or benessere located -K Y near th'eiinneredgesoi the s'aidgsidepiecesnH K K 2K5 rockingfmotion nrtrasfelfy ofthetympanupen KK order that "they sh all nutl ainterterecwithl the flyvbelow the shaftsfla'and tlfler said shafts are r K f @the cross barslan dit?? through themediumoflr springsl 2.2K; located 4at they r4endsVrofV` Vtheshatts i" and each shaft is provided, preferably at its center,withal: attached handle enlever-23, and thcsehandles 'or' leversareadapted` fte? 'engagefwith projections orr knees'2s,locatedV "atftheendsotthehed preferably at the new traiportierithereo.A f' 'f f `A feltor rubber blanketE upon which the paper is laid, is carried by thetympan, the sides of the blanket being free and Working independently ofthe tympan. The ends of the blanket are secured in any suitable orapproved manner to the cross bars 16 and 17 of the tympan frame, andwhen the tympan is in position to commence printing, as shown in Fig. 3,the blanket stands rearward or outward from the body of the tympan ;butduring the process of printing the impression cylinder presses theblanket and the paper supported by it downward against the type form.

The paper is held at its ends by the upperand lower, or the two end setsof grippers 21, the said grippers engaging with the paper and clampin git between themselves and the cross bars 16 and 17.

In order that the tympan shall have guided movement upon the bed, thatis, in a sidewise direction, and in order to insure its rocking in thesame path at all times, projections or studs 25, are preferably formedupon the outer side edges of the side pieces of the tympan, and theseprojections or studs are adapted to enter recesses 26, formed in theinner upper side faces of the run-Ways 10; but if in practice it isfound desirable a rack 4surface 27, may be formed upon the uppersurfaces of 'the runways 10 and therailsgll, to be en l kgagcxl by teeth28,fomnednpon-the under face.v K

Kot ltheside pieces of the tympanrame, as illustrated in,Fig.7. Y

n ln' I have illustratedthemannerY in which thespringsKexertpowernponthe- Ka ygrippers land in said ligureitwillbeob: 1 K f served,thatzrthe springs lat theirfouter; endsare securedto thefboxes2d,whilethcirinnerends. f @are securedtctheend grippers,all ot thegrip-k K persbeincr rigidly attached ter theshatte19.-4 Thus, intlrepreeesset printingwhensthe tyinfK l ypanisi n'the position shown'for examplein Fils. 1 3, thatlis, when; theimpressioneyltnderiis atrrV; K,

oneiend of the base; tf1-ame of K thepress, theV the grippersY attirelowergportion otlthe tym-K npan ywill-be' epened, f admitting-of.the'-with Y drawal ofthe ipanier therefromer the introV K daeteniota sheet ot paperthereimand after g f the'paper Khasbeenuseenred, orhasvbeen'lo- 01: i lower cross bari?, the lever 23 ofY the upperfset K n'of grippersismanipnlated'Kteraisefsaid grip-V 1 pers tronr connectionwith the# upper cross y K K bari 16,1 and the paper-is placed upon thatbar K aand Y isengaged the upperset of grippers provided with ka 'SeriesofV grippers V21,which f grippersareheld normallyinengagementwitha catedbetween f the slower; grippers andr the lower lever;y23,1"attaehedtothelower gripper shaft lthwiil have engaged with astudhand K v n A f B Y the impression Keylinder istrolhed-y in direc-KKtienfot: the eppesitelend of theiramefthe lower: 'K

cross barswill closenponthe paper, and the Y loe* -wardrto airoekingengagement with Vtherails f 11; andasethe cylinder passes'indirectiencti; K'

.the nppesite endlnitheftympan; and-tikewise upon the type form, Whilethe printed portion of the paper will be raised from the theoppositeendof'the press, thezsurtaeeg of' i i :the paper tobeprinted isforeedidownward m5 K form, thus ettectuallypreventing any smudging ormarring of the material to be treated. As the impression cylinderapproaches the opposite end of the tympan the surface over which theroller is passing is elevated clear of the type form, and when thecylinder engages with the opposite curved surface of the tympan thetympan will be elevated upward and rearward in an opposite direction tothat shown in Fig. 3, and in like manner.

The invention is exceedingly simple, durable and economic, and by meansof a rocking tympan fine Work may be obtained and likewise a saving oftime, because the tympan need not be touched by hand but is operatedsimply and automatically by revolving the cylinder, whereupon it isgiven a rocking motion. Thus the tympan rises and falls automatically.The rocking tympan can be used on all printing presses where thestraightdisk is employed, and as heretofore stated it makes a radicalimprovement in the printing.

It will be observed that when the blanket is fastened to the rockingtympan as has been described, that is, with its edges free, the papertouches the type in such place only where pressure is brought to bearupon it by the printing cylinder. It is also evident that by rotatingthe cylinder on the rocking tympan it will impart to the tympan arocking inotion at that point where theblanket together with the paperis pressed down at the front of the cylinder, and at the same tmethetympan is raised at the rear ot' thev cylinder and the printed portionof the sheet is carried out of engagement with the type form.

When the cylinder has traveled from one end of the press to the other,lwhat was formerly the lower portion of the tympan will become the upperportion; and the lever 23 of the lowermost set of grippers will strikethe projection 24::upon the bed, and the lower set of grppers will bethereby automatically opened, and the printed sheet may be removed bypressing downward upon the lever of the upper set of grippers; and aftera new sheet ot paper has been placed in gripping engagement with thetympan, the cylinder is rolled back to the opposite end of the bed ofthe press and a second impression is taken. This operation is repeateduntil as many sheets have been printed as may be found desirable.

Having thus described my invention, I claim as neur and desire to secureby Letters Patent--A over the tympan and imparting movement thereto, asand for the purpose set forth.

3. In a printing press, the combination, with a support and a type bed,of a tympan com- 4e prising an arched body and upwardly and inwardlycurved ends, and an impression cylinder adapted to be 'rolled over thetympan, whereby the latter is given a rocking movement upon its support,as and for the purpose specified.

4. In a printing press, the combination, with a support and a type bed,of a tympan of essentially cradle shape and adapted to have rockingmovement upon the support, and an impression cylinder independent of thetympan and held to roll over and upon the said tympan, and grippingdevices carried by the tympan, as and for the purpose specified.

5. In a printing press, a cradle-like tympan adapted for rockingmovement over the bed of the press, a blanket secured at its ends to thetympan and free at its edges, and grippers located at the ends of thetympan, substantially as and for the purpose set forth.

6. In a press, the combination, with a support, a type bed, a tympancomprising an arched body and inwardly curved extremities, and a blanketsecured to the body near its extremities at its ends, of an impressioncylinder having rolling motion over and upon the tympan, impartingrocking motion to the latter, grippers carried by the tympan, and means,substantiallyas shown and described for manipulating the grippers, asand for the purpose set forth.

7. In a printing press, the combination, with4 a type bed, a support, ofa rocking tympan having meshing engagement with its support, and animpression cylinder through the medium of which the tympan is givenmotion, as and for the purpose specied.

HYNEK BREUER.

Witnesses:

JOHN PROSHEK, FRANK Covnnr.

